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Finding the Fourth Proportional to 73,108.57, 100,878.45 and 41,276.80

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Solution

The fourth proportional to 73,108.57, 100,878.45 and 41,276.80 is: 56,955.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,108.57 : 100,878.45 = 41,276.80 : x
  2. Step 2: Convert to fraction form
    73,108.57/100,878.45 = 41,276.80/x
  3. Step 3: Cross multiply
    73,108.57x = 100,878.45 × 41,276.80
  4. Step 4: Simplify right side
    73,108.57x = 4,163,939,604.96
  5. Step 5: Solve for x
    x = 4,163,939,604.96/73,108.57
  6. Step 6: Final answer
    x = 56,955.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.